Difference between ASUS ZENFONE MAX PLUS (M1) and ? in countries.United States

	PRODUCT 1	PRODUCT 2
	ASUS ASUS ZENFONE MAX PLUS (M1)
VERSION
Announced
Release date	2017
NETWORK
Technology
DEVICE
Dimensions
Weight
S.I.M.
Design
Other
SCREEN
langfront.Type
Size	5.7 inches - 1080 x 2160 pixels
Resolution
Protection

PLATFORM
Operating system	Android 7.0 (Nougat)
Chipset
Processor	Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
GPU
MEMORY
Card slot
Internal & RAM	64 GB, 4 GB RAM or 32 GB, 3 GB RAM or 16 GB, 2 GB RAM
CAMERA
Main	Dual 16 MP & 8 MP - Selfie 8 MP
SOUND
Loudspeaker
Jack 3,5 mm
CONNECTIVITY
Wifi
Bluetooth
GPS
NFC
Radio
USB
CHARACTERISTICS
Sensors
Various
BATTERY
Type	4130 mAh

What is the difference between ASUS ZENFONE MAX PLUS (M1) and in countries.United States?